Parking underground is safe... as long as I don't go anywhere near them.There are safe underground Parking garages in DT Toronto for $5 after 6pm, with cameras everywhere.
The problem isn't robbers, it's that I can't park for shit and I can't see the ends of the car so I have no idea where the nose or ass is without guessing which makes me very nervous.
I tried it once about 15 years ago with a Mercury Sable and it was a complete cluster fuck. Not helped by it being my first time in an underground parking lot ever. [I don't live in Toronto]
At least I know my limits.